[Samba] Samba 3.0 and Active Directory Replication

[John Brown]

I have been following the development ot Samba 3.0 with great interest.
There is something that still confuses me.

Can Samba 3.0 join a Windows 2000 network as a domain controller and
replicate Active Directory information with existing Windows 2000 domain
controllers?

If Samba 3.0 is the only domain controller on a network with Windows 2000/XP
clients, will the clients see it as a domain controller running Active
Directory?